<template>
	<div class="wrapper">
	  <!-- header部分 -->
	  <header>
		<div class="icon-location-box">
		  <div class="icon-location"></div>
		</div>
		<div class="location-text">
		  沈阳市规划大厦<i class="fa fa-caret-down"></i>
		</div>
	  </header>
  
	  <!-- search部分 -->
	  <!-- 
					  搜索框部分（此块与search-fixed-top块宽度高度一致，用于当
					  search-fixed-top块固定后，挡住下面块不要窜上去） 
				  -->
	  <div class="search">
		<!-- 当滚动条超过上面的定位块时，search-fixed-top块变成固定在顶部。 -->
		<div class="search-fixed-top" ref="fixedBox">
		  <!-- 搜索框部分中间的白框 -->
		  <div class="search-box">
			<i class="fa fa-search"></i>搜索饿了么商家、商品名称
		  </div>
		</div>
	  </div>
  
	  <!-- 点餐分类部分 -->
	  <ul class="foodtype">
		<li @click="toBusinessList(1)">
		  <img src="../assets/dcfl01.png" />
		  <p>美食</p>
		</li>
		<li @click="toBusinessList(2)">
		  <img src="../assets/dcfl02.png" />
		  <p>早餐</p>
		</li>
		<li @click="toBusinessList(3)">
		  <img src="../assets/dcfl03.png" />
		  <p>跑腿代购</p>
		</li>
		<li @click="toBusinessList(4)">
		  <img src="../assets/dcfl04.png" />
		  <p>汉堡披萨</p>
		</li>
		<li @click="toBusinessList(5)">
		  <img src="../assets/dcfl05.png" />
		  <p>甜品饮品</p>
		</li>
		<li @click="toBusinessList(6)">
		  <img src="../assets/dcfl06.png" />
		  <p>速食简餐</p>
		</li>
		<li @click="toBusinessList(7)">
		  <img src="../assets/dcfl07.png" />
		  <p>地方小吃</p>
		</li>
		<li @click="toBusinessList(8)">
		  <img src="../assets/dcfl08.png" />
		  <p>米粉面馆</p>
		</li>
		<li @click="toBusinessList(9)">
		  <img src="../assets/dcfl09.png" />
		  <p>包子粥铺</p>
		</li>
		<li @click="toBusinessList(10)">
		  <img src="../assets/dcfl10.png" />
		  <p>炸鸡炸串</p>
		</li>
	  </ul>
  
	  <!-- 横幅广告部分（注意：此处有背景图片） -->
	  <div class="banner">
		<h3>品质套餐</h3>
		<p>搭配齐全吃得好</p>
		<a>立即抢购 &gt;</a>
	  </div>
  
	  <!-- 超级会员部分 -->
	  <div class="supermember">
		<div class="left">
		  <img src="../assets/super_member.png" />
		  <h3>超级会员</h3>
		  <p>&#8226; 每月享超值权益</p>
		</div>
		<div class="right">立即开通 &gt;</div>
	  </div>
  
	  <!-- 推荐商家部分 -->
	  <div class="recommend">
		<div class="recommend-line"></div>
		<p>推荐商家</p>
		<div class="recommend-line"></div>
	  </div>
  
	  <!-- 推荐方式部分 -->
	  <ul class="recommendtype">
		<li>综合排序<i class="fa fa-caret-down"></i></li>
		<li>距离最近</li>
		<li>销量最高</li>
		<li>筛选<i class="fa fa-filter"></i></li>
	  </ul>
  
	  <!-- 推荐商家列表部分 -->
	  <ul class="business">
		<li>
		  <img src="../assets/sj01.png" />
		  <div class="business-info">
			<div class="business-info-h">
			  <h3>万家饺子（软件园E18店）</h3>
			  <div class="business-info-like">&#8226;</div>
			</div>
			<div class="business-info-star">
			  <div class="business-info-star-left">
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<p>4.9 月售345单</p>
			  </div>
			  <div class="business-info-star-right">蜂鸟专送</div>
			</div>
			<div class="business-info-delivery">
			  <p>&#165;15起送 | &#165;3配送</p>
			  <p>3.22km | 30分钟</p>
			</div>
			<div class="business-info-explain">
			  <div>各种饺子</div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">新</div>
				<p>饿了么新用户首单立减9元</p>
			  </div>
			  <div class="business-info-promotion-right">
				<p>2个活动</p>
				<i class="fa fa-caret-down"></i>
			  </div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div
				  class="business-info-promotion-left-incon"
				  style="background-color: #f1884f"
				>
				  特
				</div>
				<p>特价商品5元起</p>
			  </div>
			</div>
		  </div>
		</li>
		<li>
		  <img src="../assets/sj02.png" />
		  <div class="business-info">
			<div class="business-info-h">
			  <h3>小锅饭豆腐馆（全运店）</h3>
			  <div class="business-info-like">&#8226;</div>
			</div>
			<div class="business-info-star">
			  <div class="business-info-star-left">
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<p>4.9 月售345单</p>
			  </div>
			  <div class="business-info-star-right">蜂鸟专送</div>
			</div>
			<div class="business-info-delivery">
			  <p>&#165;15起送 | &#165;3配送</p>
			  <p>3.22km | 30分钟</p>
			</div>
			<div class="business-info-explain">
			  <div>各种饺子</div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">新</div>
				<p>饿了么新用户首单立减9元</p>
			  </div>
			  <div class="business-info-promotion-right">
				<p>2个活动</p>
				<i class="fa fa-caret-down"></i>
			  </div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">特</div>
				<p>特价商品5元起</p>
			  </div>
			</div>
		  </div>
		</li>
		<li>
		  <img src="../assets/sj03.png" />
		  <div class="business-info">
			<div class="business-info-h">
			  <h3>麦当劳麦乐送（全运路店）</h3>
			  <div class="business-info-like">&#8226;</div>
			</div>
			<div class="business-info-star">
			  <div class="business-info-star-left">
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<p>4.9 月售345单</p>
			  </div>
			  <div class="business-info-star-right">蜂鸟专送</div>
			</div>
			<div class="business-info-delivery">
			  <p>&#165;15起送 | &#165;3配送</p>
			  <p>3.22km | 30分钟</p>
			</div>
			<div class="business-info-explain">
			  <div>各种饺子</div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">新</div>
				<p>饿了么新用户首单立减9元</p>
			  </div>
			  <div class="business-info-promotion-right">
				<p>2个活动</p>
				<i class="fa fa-caret-down"></i>
			  </div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">特</div>
				<p>特价商品5元起</p>
			  </div>
			</div>
		  </div>
		</li>
		<li>
		  <img src="../assets/sj04.png" />
		  <div class="business-info">
			<div class="business-info-h">
			  <h3>米村拌饭（浑南店）</h3>
			  <div class="business-info-like">&#8226;</div>
			</div>
			<div class="business-info-star">
			  <div class="business-info-star-left">
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<p>4.9 月售345单</p>
			  </div>
			  <div class="business-info-star-right">蜂鸟专送</div>
			</div>
			<div class="business-info-delivery">
			  <p>&#165;15起送 | &#165;3配送</p>
			  <p>3.22km | 30分钟</p>
			</div>
			<div class="business-info-explain">
			  <div>各种饺子</div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">新</div>
				<p>饿了么新用户首单立减9元</p>
			  </div>
			  <div class="business-info-promotion-right">
				<p>2个活动</p>
				<i class="fa fa-caret-down"></i>
			  </div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">特</div>
				<p>特价商品5元起</p>
			  </div>
			</div>
		  </div>
		</li>
		<li>
		  <img src="../assets/sj05.png" />
		  <div class="business-info">
			<div class="business-info-h">
			  <h3>申记串道（中海康城店）</h3>
			  <div class="business-info-like">&#8226;</div>
			</div>
			<div class="business-info-star">
			  <div class="business-info-star-left">
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<i class="fa fa-star"></i>
				<p>4.9 月售345单</p>
			  </div>
			  <div class="business-info-star-right">蜂鸟专送</div>
			</div>
			<div class="business-info-delivery">
			  <p>&#165;15起送 | &#165;3配送</p>
			  <p>3.22km | 30分钟</p>
			</div>
			<div class="business-info-explain">
			  <div>各种饺子</div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">新</div>
				<p>饿了么新用户首单立减9元</p>
			  </div>
			  <div class="business-info-promotion-right">
				<p>2个活动</p>
				<i class="fa fa-caret-down"></i>
			  </div>
			</div>
			<div class="business-info-promotion">
			  <div class="business-info-promotion-left">
				<div class="business-info-promotion-left-incon">特</div>
				<p>特价商品5元起</p>
			  </div>
			</div>
		  </div>
		</li>
	  </ul>
  
	  <!-- 底部菜单部分 -->
	  <Footer></Footer>
	</div>
  </template>
  
  <script setup>
  import Footer from "../components/Footer.vue";
  import { ref, onMounted, onUnmounted } from "vue";
  import { useRouter } from "vue-router";
  
  const router = useRouter();
  const fixedBox = ref(null);
  
  onMounted(() => {
	document.onscroll = () => {
	  //获取滚动条位置
	  let s1 = document.documentElement.scrollTop;
	  let s2 = document.body.scrollTop;
	  let scroll = s1 == 0 ? s2 : s1;
	  //获取视口宽度
	  let width = document.documentElement.clientWidth;
  
	  //获取顶部固定块
	  let search = fixedBox.value;
  
	  //判断滚动条超过视口宽度的12%时，搜索块变固定定位
	  if (scroll > width * 0.12) {
		search.style.position = "fixed";
		search.style.left = "0";
		search.style.top = "0";
	  } else {
		search.style.position = "static";
	  }
	};
  });
  
  onUnmounted(() => {
	//当切换到其他组件时，就不需要document滚动条事件，所以将此事件去掉
	document.onscroll = null;
  })
  
  const toBusinessList = (orderTypeId) => {
	router.push({
	  path: "/businessList",
	  query: { orderTypeId: orderTypeId },
	});
  };
  </script>
  
  <style scoped>
  /****************** 总容器 ******************/
  .wrapper {
	width: 100%;
	height: 100%;
  }
  
  /****************** header ******************/
  .wrapper header {
	width: 100%;
	height: 12vw;
	background-color: #0097ff;
  
	display: flex;
	align-items: center;
  }
  
  .wrapper header .icon-location-box {
	width: 3.5vw;
	height: 3.5vw;
	margin: 0 1vw 0 3vw;
  }
  
  .wrapper header .location-text {
	font-size: 4.5vw;
	font-weight: 700;
	color: #fff;
  }
  
  .wrapper header .location-text .fa-caret-down {
	margin-left: 1vw;
  }
  
  /****************** search ******************/
  .wrapper .search {
	width: 100%;
	height: 13vw;
  }
  
  .wrapper .search .search-fixed-top {
	width: 100%;
	height: 13vw;
	background-color: #0097ff;
	display: flex;
	justify-content: center;
	align-items: center;
  }
  
  .wrapper .search .search-fixed-top .search-box {
	width: 90%;
	height: 9vw;
	background-color: #fff;
	border-radius: 2px;
  
	display: flex;
	justify-content: center;
	align-items: center;
  
	font-size: 3.5vw;
	color: #aeaeae;
	font-family: "宋体";
	/*此样式是让文本选中状态无效*/
	user-select: none;
  }
  
  .wrapper .search .search-fixed-top .search-box .fa-search {
	margin-right: 1vw;
  }
  
  /****************** 点餐分类部分 ******************/
  .wrapper .foodtype {
	width: 100%;
	height: 48vw;
  
	display: flex;
	flex-wrap: wrap;
	justify-content: space-around;
	/*要使用align-content。10个子元素将自动换行为两行，而且两行作为一个整体垂直居中*/
	align-content: center;
  }
  
  .wrapper .foodtype li {
	/*一共10个子元素，通过计算，子元素宽度在16.7 ~ 20 之间，才能保证换两行*/
	width: 18vw;
	height: 20vw;
  
	display: flex;
	/*弹性盒子主轴方向设为column，然后仍然是垂直水平方向居中*/
	flex-direction: column;
	justify-content: center;
	align-items: center;
  
	user-select: none;
	cursor: pointer;
  }
  
  .wrapper .foodtype li img {
	width: 12vw;
	/*视频讲解时高度设置为12vw，实际上设置为10.3vw更佳*/
	height: 10.3vw;
  }
  
  .wrapper .foodtype li p {
	font-size: 3.2vw;
	color: #666;
  }
  
  /****************** 横幅广告部分 ******************/
  .wrapper .banner {
	/**
		   * 设置容器宽度95%，然后水平居中，这样两边留白; 
		   * 这里不能用padding，因为背景图片也会覆盖padding
		   */
	width: 95%;
	margin: 0 auto;
	height: 29vw;
  
	/*此三个样式组合，可以保证背景图片充满整个容器*/
	background-image: url(../assets/index_banner.png);
	background-repeat: no-repeat;
	background-size: cover;
  
	box-sizing: border-box;
	padding: 2vw 6vw;
  }
  
  .wrapper .banner h3 {
	font-size: 4.2vw;
	margin-bottom: 1.2vw;
  }
  
  .wrapper .banner p {
	font-size: 3.4vw;
	color: #666;
	margin-bottom: 2.4vw;
  }
  
  .wrapper .banner a {
	font-size: 3vw;
	color: #c79060;
	font-weight: 700;
  }
  
  /****************** 超级会员部分 ******************/
  .wrapper .supermember {
	/*这里也设置容器宽度95%，不能用padding，因为背景色也会充满padding*/
	width: 95%;
	margin: 0 auto;
	height: 11.5vw;
	background-color: #feedc1;
	margin-top: 1.3vw;
	border-radius: 2px;
	color: #644f1b;
  
	display: flex;
	justify-content: space-between;
	align-items: center;
  }
  
  .wrapper .supermember .left {
	display: flex;
	align-items: center;
	margin-left: 4vw;
	user-select: none;
  }
  
  .wrapper .supermember .left img {
	width: 6vw;
	height: 6vw;
	margin-right: 2vw;
  }
  
  .wrapper .supermember .left h3 {
	font-size: 4vw;
	margin-right: 2vw;
  }
  
  .wrapper .supermember .left p {
	font-size: 3vw;
  }
  
  .wrapper .supermember .right {
	font-size: 3vw;
	margin-right: 4vw;
	cursor: pointer;
  }
  
  /****************** 推荐商家部分 ******************/
  .wrapper .recommend {
	width: 100%;
	height: 14vw;
	display: flex;
	justify-content: center;
	align-items: center;
  }
  
  .wrapper .recommend .recommend-line {
	width: 6vw;
	height: 0.2vw;
	background-color: #888;
  }
  
  .wrapper .recommend p {
	font-size: 4vw;
	margin: 0 4vw;
  }
  
  /****************** 推荐方式部分 ******************/
  .wrapper .recommendtype {
	width: 100%;
	height: 5vw;
	margin-bottom: 5vw;
  
	display: flex;
	justify-content: space-around;
	align-items: center;
  }
  
  .wrapper .recommendtype li {
	font-size: 3.5vw;
	color: #555;
  }
  
  /****************** 推荐商家列表部分 ******************/
  .wrapper .business {
	width: 100%;
	margin-bottom: 14vw;
  }
  
  .wrapper .business li {
	width: 100%;
	box-sizing: border-box;
	padding: 2.5vw;
	user-select: none;
	border-bottom: solid 1px #ddd;
  
	display: flex;
  }
  
  .wrapper .business li img {
	width: 18vw;
	height: 18vw;
  }
  
  .wrapper .business li .business-info {
	width: 100%;
	box-sizing: border-box;
	padding-left: 3vw;
  }
  
  .wrapper .business li .business-info .business-info-h {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 2vw;
  }
  
  .wrapper .business li .business-info .business-info-h h3 {
	font-size: 4vw;
	color: #333;
  }
  
  .wrapper .business li .business-info .business-info-h .business-info-like {
	width: 1.6vw;
	height: 3.4vw;
	background-color: #666;
	color: #fff;
	font-size: 4vw;
	margin-right: 4vw;
  
	display: flex;
	justify-content: center;
	align-items: center;
  }
  
  .wrapper .business li .business-info .business-info-star {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 2vw;
	font-size: 3.1vw;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-star
	.business-info-star-left {
	display: flex;
	align-items: center;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-star
	.business-info-star-left
	.fa-star {
	color: #fec80e;
	margin-right: 0.5vw;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-star
	.business-info-star-left
	p {
	color: #666;
	margin-left: 1vw;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-star
	.business-info-star-right {
	background-color: #0097ff;
	color: #fff;
	font-size: 2.4vw;
	border-radius: 2px;
	padding: 0 0.6vw;
  }
  
  .wrapper .business li .business-info .business-info-delivery {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 2vw;
  
	color: #666;
	font-size: 3.1vw;
  }
  
  .wrapper .business li .business-info .business-info-explain {
	display: flex;
	align-items: center;
	margin-bottom: 3vw;
  }
  
  .wrapper .business li .business-info .business-info-explain div {
	border: solid 1px #ddd;
	font-size: 2.8vw;
	color: #666;
	border-radius: 3px;
	padding: 0 0.1vw;
  }
  
  .wrapper .business li .business-info .business-info-promotion {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 1.8vw;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-promotion
	.business-info-promotion-left {
	display: flex;
	align-items: center;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-promotion
	.business-info-promotion-left
	.business-info-promotion-left-incon {
	width: 4vw;
	height: 4vw;
	background-color: #70bc46;
	border-radius: 3px;
	font-size: 3vw;
	color: #fff;
  
	display: flex;
	justify-content: center;
	align-items: center;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-promotion
	.business-info-promotion-left
	p {
	color: #666;
	font-size: 3vw;
	margin-left: 2vw;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-promotion
	.business-info-promotion-right {
	display: flex;
	align-items: center;
	font-size: 2.5vw;
	color: #999;
  }
  
  .wrapper
	.business
	li
	.business-info
	.business-info-promotion
	.business-info-promotion-right
	p {
	margin-right: 2vw;
  }
  </style>